agent: Improve attached context display and show hovers for symbol / selection / rules / thread (#29551)

* Brings back hover popover of selection context.

* Adds hover popover for symbol, rules, and thread context.

* Makes context attached to messages display the names / content at
attachment time.

* Adds the file name as the displayed parent of symbol context.

* Brings back `impl Component for AddedContext`

Release Notes:

- N/A

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Co-authored-by: Bennet Bo Fenner <bennet@zed.dev>
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Michael Sloan 2025-04-28 10:58:18 -06:00 committed by GitHub
parent 8afac388bb
commit abb48b7711
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5 changed files with 946 additions and 556 deletions

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